Lap tray



FIG. 1 is a top plan view of a lap tray showing my new design;

FIG. 2 is a side-elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a left end elevational view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a lap tray, as shown. 